Dentistry jaw



g- 19, 1941- c. E. LIEDBERGV 2,252,935

DENT I STRY J AW Filed Oct. 3, 1940 Biiie??? 267-.

Patented Aug. 19, 1941 UNITED STATES PATENT ()FFICE DENTISTRY JAW Carl Emil Liedberg, Chicago, Ill.

Application October 3, 1940, Serial No. 359,587

1 Claim.

The invention relates to improvements in dentures. It is an object of the invention to provide a detachable resilient connection between the two denture plates of a set of false teeth to hold the plates in proper position in the mouth.

Other advantages of the invention will be apparent from the following description:

Figure 1 is a side elevation of the set of false teeth in occlusal relation, showing the resilient connection.

Figure 2 is a view of the upper denture from the occlusal side, showing the attachment of the resilient connections of the upper denture.

Figure 3 is a perspective view of the resilient connection.

In the embodiment illustrated, two sets of artificial teeth are shown as an upper plate I and a lower plate 2. The teeth are shown as the parts 4. The two sets of teeth are detachably connected together by a resilient connection 5 as is shown in Figure 1.

The part 5 is a metal U shaped spring member which may be made of a non-ferrous metal. The spring member 5 has an end 6 adapted to be embedded in one of the dentures, the illustration showing this end embedded in the upper denture on the buccal side of and in the region of the rear molars. The opposite end I of the spring member is bent at an angle to the longitudinal axis of the U shaped spring member and is adapted to be detachably secured in a groove 3 in the lower denture on the buccal side and in the region of the rear molars when the set of teeth is in place in the mouth of the patient.

Due to the resilient action of the spring 5 and the end I riding in the groove 3 the dentures will be held in proper relation in the mouth of the user during all normal use thereof.

I claim:

The combination with upper and lower plates or sets of artificial teeth, one of said plates having a pair of sloping grooves in the region of the rear molars and on the buccal faces thereof, of connectors for said plates comprising a pair of substantially U shaped spring elements located on the buccal side of said plates and having lateral extensions at the ends thereof, one of said extensions of each of the pair of spring elements being adapted to be embedded in the one plate without the sloping grooves and adjacent to the rear molars and the other extension of each of the pair of spring elements being adapted to operate in the sloping groove in the opposite plate to hold the plates in the proper relation in the mouth of the user during all normal use thereof.

CARL EMIL LIEDBERG. 

